I was near a local creek when I heard a splash and looked back in time to see a merlin land on this rock after missing an American dipper that it was trying to catch. It sat there long enough for me to get several frames.
And this past summer, in Cooper Landing, three juvenile merlins were observed trying to catch birds.
This one caught one.
They eat dragonflies, too. Here's one ripping the wings off a hapless dragonfly: